Light emitting display device and stem for light emitting displa

Details Light emitting display device and stem for light emitting displa Light emitting display device and stem for light emitting displa

1990-10-18

1992-01-28

Lazarus, Ira S.

Illumination

Multiple filament light unit

With mask or screen for at least one filament

362240, 313272, F21V 100

Patent

active

050848062

ABSTRACT:
Disclosed is a light emitting display device comprising: a stem member comprising a lidless container having a plural number of chambers divided by partially chipped walls, filaments and their support posts arranged in each chamber; and a lid panel having transparent windows and light-shielding face. The lid panel is airtightly fixed on the upper side of the container so that the light-shielding face covers the upper portions of the chipped parts of the walls. The inside of the device is made vacuum.

REFERENCES:
patent: 2343754 (1944-03-01), Donley
patent: 3604971 (1971-09-01), Tracy
patent: 3780326 (1973-12-01), Raago

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